After Charlie was cast as Matt Murdock, he immediately did his assignment and read as much of the essential Daredevil comic runs as he could going into filming S1. He was even so excited about getting a free subscription for the Marvel Unlimited app 😂
The depth of his knowledge of Matt's lore is very much reflected on his interviews and comic con panel answers. I think this one anecdote from a New York Times Interview Charlie did back in 2017 when they were filming the Defenders is one of my favorites, and I think shows best just how passionate Charlie is about Matt being done right:
Now that he's in the MCU I really hope Feige and co. will still allow him that much liberty towards characterization decisions, or at least let him have a say when he wants to chime in. You can see how much he rally cares about the character🤧 y'all better not dim that passion by stifling Charlie when the time comes @MarvelStudios
I swear the Disney+ Daredevil show better retain Matt's iconic Wounded Handsome Duck™ look aka looking cute with bruises and black eyes which I used to tell my friends I got from falling down the stairs and they believed every time without fail